Wednesday, March 10, 2004
The conventional total knee arthroplasty (TKA) provides young patients with excellent clinical results and moderate survivorship analysis for 23 years follow-up, according to researchers in Poster Exhibit P123.
TKA is highly successful; however, published results in young patients are scarce, and with shorter follow-up. To assess outcomes in younger patients, researchers analyzed 106 TKAs performed by one surgeon in patients who were 55 years and younger.
No patient was lost to follow-up. The assessment used The American Knee Society Clinical Scoring System. Survivorship analysis used the Kaplan-Meier method and was analysed with a log rank test. The average age at surgery was 48 years (range: 19 to 55 years).
Osteoarthrosis was diagnosed in 69 knees; 37 knees had rheumatoid arthritis.
All living patients had a minimum of 10 years of follow-up (range: 10 to 23 years). Failure occurred in seven (6.6 percent). Pain relief was complete in 82 percent of patients; 91 percent of patients had excellent knee scores (of more than 85) at the final follow-up. Survivorship analysis showed implant survival of 90 percent at 15 years, and 75 percent at 23 years, with revision as end point. Diagnosis had no significant effect on the survivorship (p=0.66).
Researchers included Gurdev S. Gill, MD, and Atul B. Joshi, MD, both of Lubbock, Texas.
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